Answer:
5.
a) it increases
b) 61.8
Explanation:
a) check the chart
b) add the wave speed of 4 and 5 then divide it by 2
An object moving along the x axis experiences an acceleration of 7.0 m/s2. this means the object is:_________
This means the object is increasing its velocity by 7.0 m/s in every second.
What is acceleration?Acceleration: the rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates. Even if the speed is constant, motion on a circle accelerates because the direction is always shifting.
The meter per second per second (m/s2) unit of acceleration. The square meter is a measure of area (m2). The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t).
This enables you to calculate the change in velocity in meters per second squared (m/s2). Since acceleration is a vector quantity, both its magnitude and its direction are included.
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Are the equipotential lines evenly spaced (this would suggest a linear relationship) or exponential?
Between the plates the equipotential are evenly spaced and parallel.
Equipotential lines - A line along which the electric potential is constant.
These lines are are perpendicular to electric field lines.
These are also known as isolines of electric potential.
Potential is most positive (greater) near the +ve charge and more negative (least) near -ve charge.
Work along the electric field lines depends on the magnitude of the charge and the potential difference through which the charge is moved.
An equipotential surface is a 3D version of equipotential line.
Equipotential surface is a surface on which the electric potential is same at every point.
Field lines and equipotential surface are always perpendicular to each other.
Between the plates the equipotential are evenly spaced and parallel.
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1. If John can walk with a speed of 4 meters per second. How far will John walk if he walks for 1 hour and 30 minutes.
Answer:
21 600 m
Explanation:
4 m/s * 3600 s / hr * 1.5 hr = 21 600 m
what is the electric potential at point p which is 24 cm away from a 2.31 micro coloumb charge giancoli answers
The electric potential at point p is 86.53 KV
We know that,
Electric potential V = kQ / r
where,
k = Coulomb's constant
Q = Point charge
r = Distance
Given that,
r = 24 cm = 0.24m
Q = 2.31 mC = 2.31 * [tex]10^{6}[/tex] C
k = 8.99 * [tex]10^{9}[/tex] N [tex]m^{2}[/tex] / [tex]C^{2}[/tex]
V = ( 8.99 * [tex]10^{9}[/tex] * 2.31 * [tex]10^{6}[/tex] ) / 0.24
V = 86.53 KV
Electric potential is the amount of work energy required to move a unit charge from a reference point to a specific point inside an electric field. It is a scalar quantity.
Therefore, the electric potential at point p is 86.53 KV
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Before telemedicine can deliver high-quality medical services at a distance, ______.
Before telemedicine to provide high-quality medical treatments remotely, a dependable broadband telecommunications network must be established, and licensing obstacles in the states must be removed.
What is the definition of telemedicine?Telemedicine is the delivery and support of healthcare services over long distances using electronic information and communication technology. Distance is denoted by the Greek term "tele," and healing is denoted by the Latin word "mederi." Telemedicine can improve patient access to healthcare services, cut healthcare expenses, increase efficiency and income, and ultimately result in patients who are happier and healthier and stay with your organization. Store-and-forward, remote monitoring, and real-time interactive services are the three primary categories of telemedicine. Each of these plays a positive role in overall healthcare and, when used appropriately, can provide real advantages for both patients and healthcare professionals. Enhancing overall patient outcomes ought to be telemedicine's main objective.
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Describe and give an example of the 4 main States of Matter, including how SHAPE and VOLUME are AFFECTED IN EACH STATE, and how each state is related to the major -Spheres of the EARTH.
The four main states of matter are Solids, liquids, gases and plasma and the fifth one is man-made Bose-Einstein condensates.
What is States of Matter?The state of the substance is one of the characteristic forms that the many phases of the matter take. The four states of matter that can be encountered in daily life are solid, liquid, gas, and plasma. It is believed that many other states can only be found in extremely cold or dense matter, including the Bose-Einstein condensate and neutron degenerate matter. Quark-gluon plasmas are among the other conceivable states that are currently thought to be hypothetical.
The states that can exist inside the gadget are gaseous, liquid, or solid. A solid can be identified by its hard form, strong atomic bonds, and high viscosity. Insofar as they have a three-dimensional periodic atomic structure, most solids are crystalline; nevertheless, some solids (like glass) lack this periodic arrangement and are non-crystalline or amorphous instead.
According to the question,
The solid is densely packed with particles. The forces between the particles are so strong that they are only able to vibrate and not move freely. The solid as a result has a steady, distinct shape as well as a specific volume.
A liquid is a nearly incompressible fluid with a constant volume regardless of the pressure that adapts to the shape of its container. If both temperature and pressure are constant, volume is defined. When a solid is heated over its melting point, it turns liquid because the pressure exceeds the material's triple point.
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A block has a mass of 4.726 g and a volume of 128.9 cm3. calculate the density in g/cm3
The density of the block is 0.036 g / [tex]cm^{3}[/tex]
We know that,
Density = Mass / Volume
Given that,
Mass = 4.726 g
Volume = 128.3 [tex]cm^{3}[/tex]
Density = 4.726 / 128.3 = 0.036 g / [tex]cm^{3}[/tex]
Density is defined as the unit mass per unit volume. It is represented using ρ.
Therefore, the density of the block is 0.036 g / [tex]cm^{3}[/tex]
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___________ drinking is often done because of curiosity about taste and peer pressure.
Experimental drinking frequently occurs as a result of taste aversion and social pressure.
What is peer pressure and why it is caused?Peer pressure is the influence or pressure that comes from one's peers. Peers are frequently referred to be members of the same social or age group. Peers often surround themselves with dimwitted or poor self-esteem individuals to do their bidding because they feel the need to be in charge.
Peer pressure has several root reasons, including the need to fit in, low self-esteem, fear of being rejected, and, most often, the desire to feel safe and secure among peers. Peer pressure has the worst results and might have severe impacts. Ages 12 to 19 are when peer pressure is most prevalent. Teenagers sometimes succumb to peer pressure and do things they wouldn't otherwise do.
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The function s(t) represents the position of an object. suppose s(2) = 125 and s(4) = 175. find the average velovity of the object over the interval of time [2,4]
The average velocity of the object = 25m/s
CalculationIt is given that s (2) = 125
s (4) = 175
and we have to find average velocity of the object over the interval of time [2,4]
Using two-point formula, we have
[tex]\frac{s-125}{175-125}[/tex] = [tex]\frac{t-2}{4-2}[/tex]
s = 25t -50 + 125
s = 25t + 75 gives the position of t
Then average velocity in the interval [2,4]
[tex]\frac{1}{4-2}[/tex](s(4) - s(2))
=[tex]\frac{1}{2}[/tex][100 + 75 - 50 - 75]
= 25
By average velocity, what do you mean?The change in position or displacement (x) divided by the time intervals (t) during which the displacement occurs is the definition of average velocity.
Based on the direction of the displacement, the average velocity might either be positive or negative.
Meters per second (m/s or ms-1) is the SI measure for average velocity. Athletes who practice by running five miles north, for instance, are likely to change their speed at different points in the course of the run.
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Cascading style sheet rules are comprised of: ________
a) elements and attributes
b) selectors and declarations
c) selectors and attributes
d) properties and declarations
Cascading style sheet(CSS) rules are comprised of selectors and declarations.
What is Cascading style sheet?When describing the display of a document published in a markup language like HTML or XML, Cascading Style Sheets (CSS) is the language utilized (including XML dialects such as SVG, MathML or XHTML). Along with JavaScript and HTML, CSS is a key component of the World Wide Web. Layout, color, and font customization are all possible with CSS, which is made to separate display from content. By defining the pertinent CSS in a separate file, this separation can make content more accessible, give definition of presentation characteristics more freedom and control, and allow numerous web pages to share formatting.
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Assume the boxer punching the punching bag is the action. according to newton's 3rd law, what is the reaction?
The reaction is the force that the punching bag exerts on the boxer.
What is reaction?According to the Newtons third law of motion, action and reaction are equal and opposite. This implies that when force is exerted on a body, the body exerts the same magnitude of force back but in a different direction. Thus is why a gun recoils after the bullet has been shot.
Having known that action and reaction are equal and opposite, assuming that the boxer punching the punching bag is the action, the reaction is the force that the punching bag exerts on the boxer.
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make x the subject of 3=x/y-z
Answer: y(3+z)=x
Explanation:
Assuming that you meant 3=x/y-z without y-z being in parenthesis
3=x/y-z
3+z=x/y
y(3+z)=x
Definition of covalent compound?
Answer:
Explanation:
Covalent, or molecular, compounds are formed when two nonmetals react with one another. By sharing electrons, the elements combine to form a compound, resulting in an electrically neutral molecule. Covalent Compounds Gilbert N. Lewis, an American physical chemist, first described covalent bonding in a 1916 article, though he did not use the term.
Heat energy has to do with the energy contained within a system
true or false
science
Answer: The statement is false.
Explanation:
Although adding heat energy to a system raises its temperature, that isn't always the scenario. When you heat water, for example, the temperature rises, but when you heat it to 100 degrees Celsius, the state of the water changes while the temperature stays the same.
Hardy-weinberg equilibrium requires that the population size is and that mating is:________
In order for Hardy-Weinberg equilibrium to exist, a large population size and random mating are necessary.
How does Hardy-Weinberg equilibrium differ depending on population size?Hardy-Weinberg equilibrium requires an extremely huge population, one of indefinite size. To counteract the effects of genetic drift, this condition is necessary.Genetic drift is defined as a shift in a population's allele frequencies that happens by chance rather than as a result of natural selection.In a Hardy-Weinberg equilibrium, does random mating occur?The Hardy-Weinberg Law asserts that both allele frequencies and genotype frequencies stay constant from generation to generation in a large, random-mating population that is not impacted by the evolutionary processes of mutation, migration, or selection.
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A mountain climber is about to haul up a -m length of hanging rope. how much work will it take if the rope weighs n/m?
The work done to haul up the rope is Nm.
We need to know about work to solve this problem. Work can be defined as the energy transferred to or from an object via the application of force along a displacement. It can be written as
W = F x s
where W is work, F is force and s is the displacement.
From the question above, we know that
λ = N/m
s = m
Find the force applied
F = λ . s
F = N/m . m
F = N
Find the work done
W = F . s
W = N . m
W = Nm
Hence, the work done to haul up the rope is Nm.
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The sun has a surface temperature of approximately 5800 k. at what wavelength does the maximum energy radiated by the sun occur?
wavelength at the maximum energy radiated by the sun is
499× 10⁻⁹m (499nm)
wavelength at the maximum energy radiated by the sun occur measure by:
wien's displacement law : The black body radiation at a wavelength is inversely proportional to temperature.
acc. to wien's displacement law
λ= b/T
λ is wavelength
where T is the temperature
The sun has a surface temperature of approximately 5800 k.
b is constant of proportionality
b = 2.8977×10⁻³mk
T = 5800k
using values in above equation
λ = 2.8977 × 10⁻³ mk/ 5800k
λ= 499× 10⁻⁹m =499nm
wavelength at the maximum energy radiated by the sun is
499× 10⁻⁹m =499nm
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A solution is made by mixing 27.g of chloroform chcl3 and 55.g of acetyl bromide ch3cobr. calculate the mole fraction of chloroform in this solution. round your answer to 2 significant digits.
The Mole fraction of Chloroform in this solution is 0.336
We know that,
Mole Fraction of Chloroform = No. of moles of Chloroform / Total number of moles of the solution
No. of moles = Mass / Molar mass
Given that,
Mass of Chloroform = 27g
Mass of Acetyl bromide = 55g
Molar mass of Chloroform = 119.38 g/mol
Molar mass of Acetyl Bromide = 122.95 g/mol
No. of moles of Chloroform = 27 / 119.38 = 0.226 moles
No. of moles of Acetyl Bromide = 55 / 122.95 = 0.447 moles
Total no. of moles = 0.226 + 0.447 = 0.673 moles
Mole fraction of chloroform = 0.226 / 0.673 = 0.336
In a solution containing at least 2 components, the number of moles of one component divided by total number of moles in that solution is called Mole fraction.
Therefore, the Mole fraction of Chloroform in this solution is 0.336
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Which of the solvents given is not commonly used for acquiring a 1h nmr spectrum?
The solvents that are not commonly used for acquiring a 1H NMR spectrum are the ones that contain [tex]^{1} H[/tex] nuclei.
[tex]^{1} H[/tex] NMR is also called as Proton Nuclear Magnetic Resonance. It is a method used to determine the structure of molecules of a substance.
For this [tex]^{1} H[/tex] NMR to work perfectly, the solvents must not contain [tex]^{1} H[/tex] nuclei. That is why Deuterated solvents are used. Some of the examples of deuterium solvents are chloroform, dimethyl sulfoxide, heavy water, etc.
Therefore, the solvents that are not commonly used for acquiring a 1H NMR spectrum are the ones that contain [tex]^{1} H[/tex] nuclei.
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In a first order decomposition, the constant is 0.00711 sec-1. what percentage of the compound is left after 6.07 minutes?
32.9%, is the percentage of compound left after 6.07 minutes.
We utilize the equation A(t) = A0e-kt for decomposition, where A0 is the beginning amount of the decomposed substance at time t = 0, k is the decay constant, t is the passing of time, and A(t) is the amount at the end of time t.
The original amount, [A0], multiplied by 100 to get [A(t)], or A/A0*100, is the fraction of the decomposed molecule that is still present after time t:
A = A0e-kt
Divide both sides by A0, k = 0.00299, and A/A0 = e-0.00299t.
A/Ao is equal to e-0.00299*372, where
t = 6.2 min*(60 sec/ 1 min)
= 372 sec.
A/A0 = .3288 = 32.9%,
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give 5 applications of radiation in physics
Explanation:
1) Nuclear magnetic resonance imaging.
2) X-ray system.
3) Medical application.
4) Positron emission tomography.
5) Imagery techniques
At what point on a line through the ends of the meter stick is the electric field equal to zero?
The point on a line through the ends of the meter stick is the electric field equal to zero is 4.7 m from the 0 cm mark.
What is electric field?An electric field is the physical field that surrounds the electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them. It also refers to physical field for a system of charged particles. Electric fields originate from the electric charges and time-varying electric currents. Electric fields and the magnetic fields are both manifestations of the electromagnetic field, one of the four fundamental interactions (also called forces) of nature.
Electric fields are important in many areas of the physics, and are exploited in electrical technology. In atomic physics and chemistry, for the instance, the electric field is the attractive force holding the atomic nucleus and electrons together in atoms. It is also force responsible for chemical bonding between atoms that result in molecules.
The electric field is defined as a vector field that associates to each point in the space the (electrostatic or Coulomb) force per unit of charge exerted on an infinitesimal positive test charge at rest at that point. The derived SI unit for electric field is the volt per meter (V/m), which is equal to the newton per coulomb (N/C)
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The correct question will be:
"A +5.00-μC point charge is placed at 0.0 cm mark of meter stick and a -4.00-μC point charge is placed at 50.0 cm mark. At what point on a line through the ends of meter stick is electric field equal to zero?"
Chapter 1102 of the ______ governs the practice of texas real estate inspectors.
Chapter 1102 of the Texas Occupations Code governs the practice of Texas real estate inspectors.
What are the titles included in the texas Occupations Code?All legislation and regulations passed by the state legislature are included in the Texas Education Code. It applies to the majority of educational institutions that receive all or a portion of their funding from state taxes. The Texas Constitution and all state statutes are both searchable indexes.
1 General Requirements
2 General Licensing Provisions
3 Health Professions
4 Animal-Related Professions
5 Financial and legal services regulation
6 Control of Practices in Engineering, Architecture, Land Surveying, and Related Fields
7 Real Estate and Housing-Related Practices and Professions
8 Environmental and industrial trades regulation
9 Regulation of Cosmetologists, Barbers, and Related Professions
10 Jobs in Security and Law Enforcement
11 Jobs in Sales and Solicitation Regulation
12 Water, Health, and Safety-Related Practices and Trades
13 Sports, recreation, and entertainment
14 Motor Vehicle and Transportation Regulation
15 Employment-Related Professions
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The energy required to warm one gram of water by one celsius degree is called a _______
The energy required to warm one gram of water by one celsius degree is called a specific heat
The specific heat also known as specific heat capacity, is an intensive property specific, and representative of each substance. It is defined as the energy or amount of heat required to raise the temperature of 1 kilogram (kg) of mass by one degree Celsius (°C).
In the International units system of measurement the specific heat is expressed in Joules per kilogram per degree Kelvin.
What is temperature?It is the physical magnitude that allows us to know the degree of heat that a body or an environment has. The higher the temperature, the greater the degree of heat.
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To ensure the uniqueness of values in a nonprimary key column, use the ____ command to create an index.
To ensure the uniqueness of values in a nonprimary key column , use the Create Unique Index command to create an index.
What is refraction or index ?The ratio of the speed of light in a vacuum (c) to the speed of light in a medium (c') is known as the index of refraction (n). The propagation vector in the new medium has a different angle with respect to the normal as a result of this difference in speed when light travels from one medium to another at an angle.
The average value of units that are not homogeneous and may therefore be impacted by changes in the mix of items as well as by changes in their prices are measured by a unit value index, which is a "price" index.
Refractive index, commonly known as the index of refraction, is a measurement of how much a light beam bends when it passes through one medium and into another.
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A drop in room temperature to 65of that causes the heater to turn on provides an example of a(an):_______
Answer:
stimulus
Explanation:
A body is projected vertically upwards with a speed 100 m/s from the ground then distance it covers in its last second of its upward journey in meters is
The distance travelled by the body on last second of its upwards journey is 4.935m
What is projectile motion?
A projectile is an object or particle that is launched toward the surface of the Earth and moves along a curved path only under the influence of gravity.
To solve this question, consider the horizontal distance to be H and
distance traveled by the body in the last second be d
[tex]H=U^{2} /2g[/tex]
[tex]H=100^{2} /2*9.8[/tex]
H=510.2m
Now time taken to reach a height of
510.2 m= [tex]\sqrt[n]{2H/g}[/tex]
=10.2 seconds
Now,
[tex]s=ut+1/2gt^{2}[/tex]
[tex]H-d= (100)(t-1)-1/2g(t-1)^{2}[/tex]
[tex]510.2-d=100*9.2-1/2*9.8*9.2^{2}[/tex]
d=4936m
So, the correct answer is '4.936m'.
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An olympic swimming pool is approximately 88,263 ft3. how many cubic meters (m3) is this? assume there are 3.28 ft in 1 meter.
There are 2501.3m³ in 88,263 ft³ the Olympic swimming pool.
What is geometry?Along with arithmetic, geometry is one of the oldest subfields of mathematics. It is concerned with spatial characteristics like the separation between objects, their shape and size, and their relative positions. Geometer is the term used to describe a mathematician who specializes in geometry.
What exactly does geometry in physics mean?The area of mathematics known as geometry is concerned with the characteristics of the surrounding environment as well as the shapes of particular objects and their spatial relationships.
According to the given information:swimming pool is approximately 88,263 ft³
assume there are 3.28 ft in 1 meter.
Now ,
Given that :
3.28ft = 1m
1 ft = 1/(3.28)m
So,
1 ft = (1/3.28)³m³
88,263 ft³ = 88263/(3.28)³
= 2501.3m³
There are 2501.3m³ in the Olympic swimming pool.
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An airplane moving horizontally at 150m/s drops a package from an altitude is 490m. how long does it take the package to reach the ground? how far horizontally from the spot over which it was dropped does the package land?
An fm radio station broadcasts an oscillating radio wave at a frequency of 100 mhz. what is the period of the oscillation?
A shorter period implies a higher frequency because the relationship between the period and frequency is inverse.
T= 1/f = 1 / 1×10⁸s = 10ns
What is frequency?An event's repetitions per unit of time are what determine its frequency. It is also referred to as ordinary frequency in comparison to angular frequency and sometimes as temporal frequency in contrast to spatial frequency. Period, the inverse of frequency, is the duration of time required for one cycle of a repeating event. For instance, a heart that beats at a rate of 120 beats per minute (2 hertz) has a period (T) of 0.5 seconds between each beat (60 seconds divided by 120 beats).
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